EP0682159A1 - Deep ribbed sandwich panel and method for its manufacture - Google Patents
Deep ribbed sandwich panel and method for its manufacture Download PDFInfo
- Publication number
- EP0682159A1 EP0682159A1 EP95100666A EP95100666A EP0682159A1 EP 0682159 A1 EP0682159 A1 EP 0682159A1 EP 95100666 A EP95100666 A EP 95100666A EP 95100666 A EP95100666 A EP 95100666A EP 0682159 A1 EP0682159 A1 EP 0682159A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribs
- panel
- strips
- strip
- metal sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 11
- 239000011707 mineral Substances 0.000 claims abstract description 11
- 239000011810 insulating material Substances 0.000 claims abstract description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 4
- 239000011490 mineral wool Substances 0.000 claims abstract description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/14—Mineral wool
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/237—Noninterengaged fibered material encased [e.g., mat, batt, etc.]
- Y10T428/238—Metal cover or casing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24132—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in different layers or components parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/2457—Parallel ribs and/or grooves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24661—Forming, or cooperating to form cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24628—Nonplanar uniform thickness material
- Y10T428/24669—Aligned or parallel nonplanarities
- Y10T428/24694—Parallel corrugations
Definitions
- This invention relates to a deep ribbed sandwich panel and a method for its manufacture.
- Sandwich panels consisting of two profiled metal sheets between which a layer -of insulating material, preferably polyurethane foam, is interposed.
- a layer -of insulating material preferably polyurethane foam
- a method for the continuous manufacture of said panels is known by which two sheet metal webs are passed through suitable shaping machines which give them their required shape, in particular by forming longitudinal stiffening ribs which in some cases have a height comparable with the overall thickness of the panel (deep ribbed panel).
- the webs are advanced in such a manner as to be maintained at a distance apart corresponding to the thickness of the panel to be formed, and a plastics material such as polyurethane foam is fed between these so that on expanding it forms the insulating layer of the panel.
- the continuous panel hence formed is passed through a cutting station in which it is reduced to finished panels of the required length.
- the internal layer of insulating material consists of a plurality of side-by-side coplanar strips of mineral fibre with their longitudinal axis perpendicular to the longitudinal axis of the panel and with the fibre axis perpendicular to the metal sheets.
- Such a panel has however the drawback, in the case of fire, of different behaviour between the non-combustible mineral fibres and the highly combustible polyurethane.
- this type of panel also has the drawback of possibility of combustion because of the polyurethane present.
- An object of the invention is to obviate these drawbacks by providing a deep ribbed sandwich panel in which the entire filling consists of mineral fibres.
- a further object of the invention is to provide a method enabling a panel to be manufactured continuously and automatically.
- the sandwich panel according to the invention is of the deep ribbed type, ie with stiffening ribs of height comparable with the overall panel thickness and consists of two metal sheets 3,4 between which a layer 5 of mineral wool fibres is interposed.
- the insulating layer 5 is formed from a series of side-by-side strips 6 with their longitudinal axis parallel to the longitudinal axis of the panel and with the fibre axis arranged perpendicular to the strip axis.
- each panel also comprise a plurality of internal and external longitudinal grooves 7 of small height compared with the panel thickness.
- strips 8 having a cross-section complementary to the cross-section of the ribs and with the fibre axis perpendicular to the longitudinal axis of the strip and parallel to the sheet metal surfaces.
- an apparatus comprising a portal frame 9 arranged transverse to the direction of advancement of the sheet metal web leaving the shaping line which shapes the sheet metal with deep ribs 2 having their concavity facing upwards.
- the upper cross-member of the portal frame comprises two mutually facing C-shaped guides within which there are guided four transport elements raisable by conventional systems and indicated overall by 11.
- Each transport element 11 comprises a pair of rollers 12 slidable along the guides and supporting gripping elements consisting of two pneumatic cylinders 13 with their axes downwardly diverging, their rods 17 being provided at their ends with needles 14.
- Each needle 14 passes through a hole 18 provided in a plate 19 rigid with the cylinder body.
- a chain conveyor 15 which rotates a plurality of cradles 16 having a shape substantially corresponding to the shape of the rib 2.
- the cradles 16 of the chain conveyor are filled automatically or manually with corresponding mineral fibre strips 8.
- the guide is then made to rise until the strip disengages from the relative cradle, after which the four transport elements 11 are advanced by a pneumatic cylinder (not shown on the drawings) fixed to the first transport element along the guides so that they become positioned ovrelying the ribs provided in the panel which is advancing below.
- This first transport element is connected by a flexible cable to the second element, which is connected to the third element connected in its turn to the fourth element.
- the transport elements are in mutual contact when they lie above the cradles of the chain conveyor, whereas they are spaced apart during their travel towards the sheet metal web.
- the cylinder rods are then made to totally retract so that by virtue of the plates the needles 14 disengage from the strips, which can then rest in the ribs 2.
- the speed of advancement of that sheet metal web comprising the deep ribs is synchronized with the speed of the chain conveyor and the movement of the transport element and cylinders so that the time required to advance the sheet metal web through a distance corresponding to the length of the strip equals the time taken by the transport elements, once they have deposited the strips in the ribs, to return to their position above the conveyor belt, pick up the strips and return to their position above the sheet metal.
- control devices of photoelectric cell type are provided able to indicate the exact position of the strips within the ribs and to control the operating cycle of the transport elements.
- the sheet metal web 3 with its ribs 2 hence filled with the mineral fibre strips 8 is then fed to a conventional panel forming line along which a layer of insulating material consisting of mineral fibre strips is interposed between the lower sheet metal web 3 comprising the deep ribs and the upper sheet metal web 4.
- the plant for inserting the strips 8 into the ribs uses an elevator table 20 supporting boxes containing the cut strips 8.
- a pusher 21 consisting of a pair of chains 22 provided with pusher blades 23 pushing towards an accumulation/conveyor belt 24 constructed of material having a low coefficient of friction and high wear resistance.
- This orientating member consists of a rotating hollow shaft having an inner radius slightly greater than the radius of the circle circumscribing the trapezoidal cross-section of the strip 8, so that the strip can be inserted into said shaft without excessivee friction.
- the length of said shaft is less than the length of the strip so that the ends of the strip emerge from said shaft, to enable the orientation of the strip inserted into it to be confirmed.
- the entry end of the shaft is of conical shape to facilitate introduction of the strip.
- a conveyor 28 comprising cradles 29 with its direction of advancement perpendicular to the axis of the orientator.
- the distance between the axes of the cradles which as in the preceding case have a shape corresponding to that of the strip cross-section, is substantially equal to the distance between the axes of the ribs 2 of the metal sheet 3.
- the advancement line for the upper metal sheet 3' and lower metal sheet 3 forming the panel to be constructed is provided in a position longitudinally aligned with the end cradles of the conveyor belt.
- the last four cradles of the belt conveyor are always located in correspondence with the ribs 2 of the lower metal sheet 3, whereas one cradle is always coaxial with the shaft of the strip orientator, ready to receive the orientated strip.
- the conveyor 28 moves stepwise, so that for each three strip loading cycles a cycle occurs in which they are discharged onto the underlying cradles.
- a transfer pusher 30 consisting of a pair of chains provided with a shaped blade 31 able to penetrate between-the cradles on the belt.
- Each belt passes at its front end about a motorized roller, all rollers being mounted on the same drive shaft.
- a photoelectric cell system not shown on the drawings, enables the rib filling to be monitored and the travel of the transfer pusher to be controlled.
- the advancement speed of the three belts is just greater than the advancement speed of the constituent metal sheets of the panel, so as to ensure continuity between the successively inserted strips.
- the currently described plant requires the shaped strips to be deposited on the surface of the elevator table 20 the strips having their fibres orientated parallel to the base and perpendicular to the length of the strips.
- the strips which as stated are of isosceles trapezoidal cross-section, are also arranged with their major face alternately facing one direction and the other in the same layer.
- the layers of strips are withdrawn individually and transferred by the pusher 21 comprising blades 23 onto the conveyor belt 24, at the end of which the bladed pusher 26 removes the strips one at a time by withdrawing them laterally and inserting them into the hollow shaft forming the orientator 27.
- each strip is made to rotate through 90° to the right or left about its axis until the minor base of the trapezoidal cross-section faces downwards.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Building Environments (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
Description
- This invention relates to a deep ribbed sandwich panel and a method for its manufacture.
- Sandwich panels are known consisting of two profiled metal sheets between which a layer -of insulating material, preferably polyurethane foam, is interposed.
- A method for the continuous manufacture of said panels is known by which two sheet metal webs are passed through suitable shaping machines which give them their required shape, in particular by forming longitudinal stiffening ribs which in some cases have a height comparable with the overall thickness of the panel (deep ribbed panel). The webs are advanced in such a manner as to be maintained at a distance apart corresponding to the thickness of the panel to be formed, and a plastics material such as polyurethane foam is fed between these so that on expanding it forms the insulating layer of the panel. When the plastics expansion process has ended, the continuous panel hence formed is passed through a cutting station in which it is reduced to finished panels of the required length.
- These known panels have however the drawback of poor flame resistance due to the presence of the foamed material.
- To obviate this drawback it has been proposed to form sandwich panels in which the internal layer of insulating material consists of a plurality of side-by-side coplanar strips of mineral fibre with their longitudinal axis perpendicular to the longitudinal axis of the panel and with the fibre axis perpendicular to the metal sheets.
- In the case of deep ribs the problem of rib filling exists because the mineral fibres cannot be injected, whereas the more simple solution of not in fact filling the ribs has certain drawbacks, including:
- the creation of channels along which flames and oxygen can propagate in the case of fire,
- a substantial reduction in transverse rigidity of the panel with consequent handling difficulties during installation,
- the lack of thermal insulation at these ribs with the possibility of condensate formation.
- To overcome these drawbacks it has been proposed to fill the rib cavities with a plastic insulating material such as polyurethane.
- Such a panel has however the drawback, in the case of fire, of different behaviour between the non-combustible mineral fibres and the highly combustible polyurethane.
- In another known type of panel a mixture of polyurethane and mineral fibres is injected into the deep ribs.
- However, although to a lesser extent, this type of panel also has the drawback of possibility of combustion because of the polyurethane present.
- An object of the invention is to obviate these drawbacks by providing a deep ribbed sandwich panel in which the entire filling consists of mineral fibres.
- A further object of the invention is to provide a method enabling a panel to be manufactured continuously and automatically.
- These and further objects which will be apparent from the ensuing description are attained according to the invention by a sandwich panel as described in
claim 1. - The present invention is described in detail hereinafter with reference to the accompanying drawings in which:
- Figure 1
- is a cross-section through a sandwich panel according to the invention;
- Figure 2
- is a schematic view of an apparatus for inserting the strips into the ribs;
- Figure 3
- is a side view thereof;
- Figure 4
- is a detail of the raising system;
- Figure 5
- is a plan view of a further plant for forming the panel;
- Figure 6
- is a view thereof on the line VI-VI of Figure 5;
- Figure 7
- is a view thereof on the line VII-VII of Figure 5; and
- Figure 8
- is a view thereof on the line VIII--VIII of Figure 5.
- As can be seen from the figures, the sandwich panel according to the invention, indicated overall by 1, is of the deep ribbed type, ie with stiffening ribs of height comparable with the overall panel thickness and consists of two
metal sheets layer 5 of mineral wool fibres is interposed. - Specifically, the
insulating layer 5 is formed from a series of side-by-side strips 6 with their longitudinal axis parallel to the longitudinal axis of the panel and with the fibre axis arranged perpendicular to the strip axis. - The metal sheets of each panel also comprise a plurality of internal and external
longitudinal grooves 7 of small height compared with the panel thickness. - Within the
ribs 2 there are insertedstrips 8 having a cross-section complementary to the cross-section of the ribs and with the fibre axis perpendicular to the longitudinal axis of the strip and parallel to the sheet metal surfaces. - To construct a panel according to the invention an apparatus is provided comprising a
portal frame 9 arranged transverse to the direction of advancement of the sheet metal web leaving the shaping line which shapes the sheet metal withdeep ribs 2 having their concavity facing upwards. The upper cross-member of the portal frame comprises two mutually facing C-shaped guides within which there are guided four transport elements raisable by conventional systems and indicated overall by 11. - Each
transport element 11 comprises a pair ofrollers 12 slidable along the guides and supporting gripping elements consisting of twopneumatic cylinders 13 with their axes downwardly diverging, theirrods 17 being provided at their ends withneedles 14. Eachneedle 14 passes through ahole 18 provided in aplate 19 rigid with the cylinder body. - In a position facing the portal frame there is provided a
chain conveyor 15 which rotates a plurality ofcradles 16 having a shape substantially corresponding to the shape of therib 2. - In operating the apparatus the
cradles 16 of the chain conveyor are filled automatically or manually with correspondingmineral fibre strips 8. - When the cradles have arrived in proximity to the end of the chain, a command is fed to the
cylinders 13 to cause theirrods 17 and theneedles 14 fixed to them to emerge, with consequent engagement of the underlying strip. - The guide is then made to rise until the strip disengages from the relative cradle, after which the four
transport elements 11 are advanced by a pneumatic cylinder (not shown on the drawings) fixed to the first transport element along the guides so that they become positioned ovrelying the ribs provided in the panel which is advancing below. - This first transport element is connected by a flexible cable to the second element, which is connected to the third element connected in its turn to the fourth element. In this manner the transport elements are in mutual contact when they lie above the cradles of the chain conveyor, whereas they are spaced apart during their travel towards the sheet metal web.
- The cylinder rods are then made to totally retract so that by virtue of the plates the
needles 14 disengage from the strips, which can then rest in theribs 2. - It should be noted that the speed of advancement of that sheet metal web comprising the deep ribs is synchronized with the speed of the chain conveyor and the movement of the transport element and cylinders so that the time required to advance the sheet metal web through a distance corresponding to the length of the strip equals the time taken by the transport elements, once they have deposited the strips in the ribs, to return to their position above the conveyor belt, pick up the strips and return to their position above the sheet metal.
- In all cases, control devices of photoelectric cell type are provided able to indicate the exact position of the strips within the ribs and to control the operating cycle of the transport elements.
- The
sheet metal web 3 with itsribs 2 hence filled with themineral fibre strips 8 is then fed to a conventional panel forming line along which a layer of insulating material consisting of mineral fibre strips is interposed between the lowersheet metal web 3 comprising the deep ribs and the uppersheet metal web 4. - In a different embodiment, shown in Figures 5 to 8, the plant for inserting the
strips 8 into the ribs uses an elevator table 20 supporting boxes containing thecut strips 8. In a position above said table there is provided apusher 21 consisting of a pair ofchains 22 provided withpusher blades 23 pushing towards an accumulation/conveyor belt 24 constructed of material having a low coefficient of friction and high wear resistance. - In a position corresponding to the end of the belt there is provided a stop and above this there is provided a further pusher member of blanded
type 26 for inserting the strips into anorientating member 27. - This orientating member consists of a rotating hollow shaft having an inner radius slightly greater than the radius of the circle circumscribing the trapezoidal cross-section of the
strip 8, so that the strip can be inserted into said shaft without excesive friction. The length of said shaft is less than the length of the strip so that the ends of the strip emerge from said shaft, to enable the orientation of the strip inserted into it to be confirmed. - The entry end of the shaft is of conical shape to facilitate introduction of the strip.
- In a position facing the exit of the orientator there is provided a
conveyor 28 comprisingcradles 29 with its direction of advancement perpendicular to the axis of the orientator. - The distance between the axes of the cradles, which as in the preceding case have a shape corresponding to that of the strip cross-section, is substantially equal to the distance between the axes of the
ribs 2 of themetal sheet 3. - The advancement line for the upper metal sheet 3' and
lower metal sheet 3 forming the panel to be constructed is provided in a position longitudinally aligned with the end cradles of the conveyor belt. - Specifically, the last four cradles of the belt conveyor are always located in correspondence with the
ribs 2 of thelower metal sheet 3, whereas one cradle is always coaxial with the shaft of the strip orientator, ready to receive the orientated strip. - The
conveyor 28 moves stepwise, so that for each three strip loading cycles a cycle occurs in which they are discharged onto the underlying cradles. - Overlying the
cradle conveyor 28 there is provided atransfer pusher 30 consisting of a pair of chains provided with ashaped blade 31 able to penetrate between-the cradles on the belt. - Longituidnally aligned with the conveyor cradles 29 there are provided three
small conveyor belts 32, each of which consists of a guide inclined towards the base of therib 2 in the metal sheet and provided with side walls with the exception of the front end, where it penetrates into the corresponding rib via a curvature formed by bending said end. - Each belt passes at its front end about a motorized roller, all rollers being mounted on the same drive shaft.
- A photoelectric cell system, not shown on the drawings, enables the rib filling to be monitored and the travel of the transfer pusher to be controlled.
- The advancement speed of the three belts is just greater than the advancement speed of the constituent metal sheets of the panel, so as to ensure continuity between the successively inserted strips.
- To insert the strips into the ribs, the currently described plant requires the shaped strips to be deposited on the surface of the elevator table 20 the strips having their fibres orientated parallel to the base and perpendicular to the length of the strips.
- The strips, which as stated are of isosceles trapezoidal cross-section, are also arranged with their major face alternately facing one direction and the other in the same layer.
- The layers of strips are withdrawn individually and transferred by the
pusher 21 comprisingblades 23 onto theconveyor belt 24, at the end of which the bladedpusher 26 removes the strips one at a time by withdrawing them laterally and inserting them into the hollow shaft forming theorientator 27. - Here, each strip is made to rotate through 90° to the right or left about its axis until the minor base of the trapezoidal cross-section faces downwards.
- The introduction of a new strip into the orientator causes the preceding strip to be expelled, this being hence inserted into the facing
cradle 29 of thecradle conveyor 28. During the stepwise movement of theconveyor 28 the various cradles are filled, and when the last three are in position overlying the ribs of the panel to be constructed, the transfer pusher is activated to transfer the strips onto the belts for insertion, during the next stage of the cycle, into the ribs of the sheet metal web which is advancing.
Claims (8)
- A deep ribbed sandwich panel (1) comprising at least one shaped metal sheet (3,3',4) with ribs (2), and a layer of insulating material (5) consisting of mineral wool fibres, characterised in that the ribs (2) are filled with at least one mineral fibre strip having a shape complementary to that of the shaped edge of the ribs.
- A panel as claimed in claim 1, characterised in that the strips (6) have their fibre axes perpendicular to the longitudinal axis of the panel (1) and parallel to the surface of the metal sheet (3,4).
- A panel as claimed in claim 1, characterised in that the metal sheets (3,3',4) of the panel (1) comprise a plurality of internal and external longitudinal grooves (7) of height less than the thickness of the panel.
- A panel as claimed in claim 1 characterised in that the ribs have trapezoidal cross-section.
- A method for constructing the panel claimed in claims 1 to 4, characterised in that before applying the layer of insulating material (5), a plurality of mineral fibre strips (8) having a cross-section complementary to that of the ribs (2) are inserted into the ribs (2) of the metal sheet (3,3',4).
- A method as claimed in claim 5, characterised in that the strips (8) are inserted into the ribs (2) automatically from above at the exit of the shaping station for the sheet metal web.
- A method as claimed in claim 5, characterised in that the strips (8) to be inserted into the ribs (2) are fed by a conveyor belt (15,28) comprising cradles (16,29) having a shape and dimensions substantially corresponding to the rib (2).
- A method for constructing panels as claimed in claim 7 characterised by:- cutting a plurality of substantially trapezoidal cross-section strips, each having the fibres arranged parallely to the bases and orthogonally to the length of the strip,- orientating said strips (8) so as to arrange them with the major face facing upwards,- inserting said strip (8) in the conveyor belt comprising cradles,- introducing said strips in the ribs of the advancing metal sheet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT94VE000022A ITVE940022A1 (en) | 1994-05-13 | 1994-05-13 | DEEP RIBBED SANDWICH PANEL AND PROCEDURE FOR ITS REALIZATION. |
ITVE940022 | 1994-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0682159A1 true EP0682159A1 (en) | 1995-11-15 |
EP0682159B1 EP0682159B1 (en) | 1997-11-19 |
Family
ID=11424006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95100666A Revoked EP0682159B1 (en) | 1994-05-13 | 1995-01-19 | Deep ribbed sandwich panel and method for its manufacture |
Country Status (19)
Country | Link |
---|---|
US (1) | US5773117A (en) |
EP (1) | EP0682159B1 (en) |
JP (1) | JPH09500343A (en) |
KR (1) | KR960704129A (en) |
CN (1) | CN1128554A (en) |
AT (1) | ATE160410T1 (en) |
AU (1) | AU2562395A (en) |
BG (1) | BG62057B1 (en) |
CA (1) | CA2166878A1 (en) |
CZ (1) | CZ7496A3 (en) |
DE (1) | DE69501057T2 (en) |
DK (1) | DK0682159T3 (en) |
ES (1) | ES2110789T3 (en) |
FI (1) | FI960129A (en) |
HU (1) | HU215328B (en) |
IT (1) | ITVE940022A1 (en) |
NO (1) | NO960136D0 (en) |
SK (1) | SK5296A3 (en) |
WO (1) | WO1995031619A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0801190A1 (en) * | 1996-04-10 | 1997-10-15 | Rockwool Lapinus B.V. | Insulated metal wall construction |
WO1999045218A1 (en) * | 1998-03-04 | 1999-09-10 | Trimo D.D. | Light building panel, process, and apparatus for continuous manufacturing of light building panels with mineral filling |
WO1999046460A1 (en) * | 1998-03-12 | 1999-09-16 | Boral Limited | An elongate building element, sheet material for forming same and method of manufacture thereof |
ES2155012A1 (en) * | 1999-03-04 | 2001-04-16 | Cristaleria Espan | Metal sandwich of mineral wool for use as an insulator. |
WO2003078752A1 (en) | 2002-03-18 | 2003-09-25 | Metecno Spa | Insulating panel with deeply profiled faces, process and apparatus for manufacturing thereof |
WO2004009929A1 (en) | 2002-07-19 | 2004-01-29 | Metecno Spa | Insulating panel with outer reinforcing sections |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MXPA01009918A (en) | 1999-03-31 | 2002-04-24 | Masonite Corp | Composite building components, and method of making same. |
US6773791B1 (en) * | 1999-03-31 | 2004-08-10 | Masonite Corporation | Composite building components, and method of making same |
US6764772B2 (en) * | 2001-10-31 | 2004-07-20 | Cambridge University Technical Services Ltd. | Sandwich material |
CN1953859A (en) * | 2004-05-03 | 2007-04-25 | 默特克诺股份有限公司 | Process for manufacturing insulating panels with polymeric foam and mineral wool |
CN102173130A (en) * | 2010-12-28 | 2011-09-07 | 上海永明机械制造有限公司 | Rock wool or glass wool preprocessing device and method in the sandwich panel production process |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2077807A (en) * | 1980-06-14 | 1981-12-23 | Price William Frank | Sealing between insulating panels |
FR2629117A1 (en) * | 1988-03-25 | 1989-09-29 | Trimo Treba Ind Mont | LIGHTWEIGHT, CALORIFYING, FIRE RESISTANT WALL PANEL AND METHOD OF MANUFACTURING THE SAME |
EP0396306A2 (en) * | 1989-05-04 | 1990-11-07 | Hunter Douglas Industries B.V. | Sandwich panel core structure |
GB2247699A (en) * | 1990-09-04 | 1992-03-11 | Butler Building Products Limit | Composite panel |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US2576698A (en) * | 1948-04-14 | 1951-11-27 | Johns Manville | Metal-sheathed insulating blanket and method of manufacture |
US3031358A (en) * | 1953-11-12 | 1962-04-24 | Johns Manville | Metal sheathed insulating blanket |
US3003902A (en) * | 1956-05-11 | 1961-10-10 | Johns Manville Fiber Glass Inc | Flexible contained insulation blanket |
BE639626A (en) * | 1963-05-06 | |||
US3969563A (en) * | 1969-08-28 | 1976-07-13 | Hollis Sr Russell E | Protective wall structure |
US4294875A (en) * | 1978-08-31 | 1981-10-13 | Schramm Arthur G | Insulation panel |
-
1994
- 1994-05-13 IT IT94VE000022A patent/ITVE940022A1/en unknown
-
1995
- 1995-01-19 ES ES95100666T patent/ES2110789T3/en not_active Expired - Lifetime
- 1995-01-19 DK DK95100666T patent/DK0682159T3/en active
- 1995-01-19 AT AT95100666T patent/ATE160410T1/en not_active IP Right Cessation
- 1995-01-19 EP EP95100666A patent/EP0682159B1/en not_active Revoked
- 1995-01-19 DE DE69501057T patent/DE69501057T2/en not_active Expired - Fee Related
- 1995-05-08 CN CN95190412A patent/CN1128554A/en active Pending
- 1995-05-08 AU AU25623/95A patent/AU2562395A/en not_active Abandoned
- 1995-05-08 US US08/564,267 patent/US5773117A/en not_active Expired - Fee Related
- 1995-05-08 HU HU9600030A patent/HU215328B/en not_active IP Right Cessation
- 1995-05-08 SK SK52-96A patent/SK5296A3/en unknown
- 1995-05-08 CA CA002166878A patent/CA2166878A1/en not_active Abandoned
- 1995-05-08 CZ CZ9674A patent/CZ7496A3/en unknown
- 1995-05-08 WO PCT/EP1995/001737 patent/WO1995031619A1/en not_active Application Discontinuation
- 1995-05-08 JP JP7529330A patent/JPH09500343A/en active Pending
-
1996
- 1996-01-10 KR KR1019960700109A patent/KR960704129A/en not_active Application Discontinuation
- 1996-01-11 BG BG100283A patent/BG62057B1/en unknown
- 1996-01-11 NO NO960136A patent/NO960136D0/en unknown
- 1996-01-11 FI FI960129A patent/FI960129A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2077807A (en) * | 1980-06-14 | 1981-12-23 | Price William Frank | Sealing between insulating panels |
FR2629117A1 (en) * | 1988-03-25 | 1989-09-29 | Trimo Treba Ind Mont | LIGHTWEIGHT, CALORIFYING, FIRE RESISTANT WALL PANEL AND METHOD OF MANUFACTURING THE SAME |
EP0396306A2 (en) * | 1989-05-04 | 1990-11-07 | Hunter Douglas Industries B.V. | Sandwich panel core structure |
GB2247699A (en) * | 1990-09-04 | 1992-03-11 | Butler Building Products Limit | Composite panel |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0801190A1 (en) * | 1996-04-10 | 1997-10-15 | Rockwool Lapinus B.V. | Insulated metal wall construction |
WO1999045218A1 (en) * | 1998-03-04 | 1999-09-10 | Trimo D.D. | Light building panel, process, and apparatus for continuous manufacturing of light building panels with mineral filling |
WO1999046460A1 (en) * | 1998-03-12 | 1999-09-16 | Boral Limited | An elongate building element, sheet material for forming same and method of manufacture thereof |
ES2155012A1 (en) * | 1999-03-04 | 2001-04-16 | Cristaleria Espan | Metal sandwich of mineral wool for use as an insulator. |
WO2003078752A1 (en) | 2002-03-18 | 2003-09-25 | Metecno Spa | Insulating panel with deeply profiled faces, process and apparatus for manufacturing thereof |
WO2004009929A1 (en) | 2002-07-19 | 2004-01-29 | Metecno Spa | Insulating panel with outer reinforcing sections |
Also Published As
Publication number | Publication date |
---|---|
NO960136L (en) | 1996-01-11 |
CN1128554A (en) | 1996-08-07 |
ITVE940022A0 (en) | 1994-05-13 |
AU2562395A (en) | 1995-12-05 |
HUT74288A (en) | 1996-11-28 |
DK0682159T3 (en) | 1998-07-27 |
SK5296A3 (en) | 1997-03-05 |
CA2166878A1 (en) | 1995-11-23 |
DE69501057T2 (en) | 1998-04-09 |
FI960129A0 (en) | 1996-01-11 |
NO960136D0 (en) | 1996-01-11 |
HU9600030D0 (en) | 1996-03-28 |
WO1995031619A1 (en) | 1995-11-23 |
KR960704129A (en) | 1996-08-31 |
ES2110789T3 (en) | 1998-02-16 |
FI960129A (en) | 1996-01-11 |
BG100283A (en) | 1996-08-30 |
BG62057B1 (en) | 1999-01-29 |
HU215328B (en) | 1998-12-28 |
ITVE940022A1 (en) | 1995-11-13 |
DE69501057D1 (en) | 1998-01-02 |
ATE160410T1 (en) | 1997-12-15 |
US5773117A (en) | 1998-06-30 |
EP0682159B1 (en) | 1997-11-19 |
CZ7496A3 (en) | 1996-09-11 |
JPH09500343A (en) | 1997-01-14 |
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